./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/06-symbeq_15-list_entry_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_048610af-a185-4893-b0d5-9b664cb27fe2/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_048610af-a185-4893-b0d5-9b664cb27fe2/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_048610af-a185-4893-b0d5-9b664cb27fe2/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_048610af-a185-4893-b0d5-9b664cb27fe2/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/06-symbeq_15-list_entry_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_048610af-a185-4893-b0d5-9b664cb27fe2/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_048610af-a185-4893-b0d5-9b664cb27fe2/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 23d465ba9caf460ed15aca3aec6b262b1ee2c4f0003cc0e5fbc446c20cfe164a --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 12:27:10,848 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:27:10,852 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:27:10,877 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:27:10,880 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:27:10,885 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:27:10,888 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:27:10,894 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:27:10,895 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:27:10,896 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:27:10,898 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:27:10,899 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:27:10,899 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:27:10,900 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:27:10,901 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:27:10,903 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:27:10,904 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:27:10,905 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:27:10,906 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:27:10,908 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:27:10,910 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:27:10,911 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:27:10,913 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:27:10,913 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:27:10,918 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:27:10,918 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:27:10,918 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:27:10,920 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:27:10,920 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:27:10,921 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:27:10,921 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:27:10,922 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:27:10,923 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:27:10,924 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:27:10,925 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:27:10,926 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:27:10,926 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:27:10,927 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:27:10,927 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:27:10,928 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:27:10,929 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:27:10,930 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_048610af-a185-4893-b0d5-9b664cb27fe2/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-16 12:27:10,953 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:27:10,953 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:27:10,953 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:27:10,954 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:27:10,954 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:27:10,955 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:27:10,955 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:27:10,955 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:27:10,956 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:27:10,956 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:27:10,956 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 12:27:10,956 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 12:27:10,957 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:27:10,957 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 12:27:10,957 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:27:10,957 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:27:10,957 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:27:10,958 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:27:10,958 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-16 12:27:10,958 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 12:27:10,958 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:27:10,958 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:27:10,958 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:27:10,959 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:27:10,959 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:27:10,959 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:27:10,959 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:27:10,960 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:27:10,960 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:27:10,960 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:27:10,960 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:27:10,960 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:27:10,961 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:27:10,961 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:27:10,961 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:27:10,961 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_048610af-a185-4893-b0d5-9b664cb27fe2/bin/uautomizer-tPACEb0tL8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_048610af-a185-4893-b0d5-9b664cb27fe2/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23d465ba9caf460ed15aca3aec6b262b1ee2c4f0003cc0e5fbc446c20cfe164a [2022-11-16 12:27:11,233 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:27:11,277 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:27:11,280 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:27:11,281 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:27:11,282 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:27:11,284 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_048610af-a185-4893-b0d5-9b664cb27fe2/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/goblint-regression/06-symbeq_15-list_entry_nr.i [2022-11-16 12:27:11,356 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_048610af-a185-4893-b0d5-9b664cb27fe2/bin/uautomizer-tPACEb0tL8/data/bcc9ca1d0/982e4dc31c52455daa28e2e95dd2af31/FLAGf6cc9a6d9 [2022-11-16 12:27:12,001 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:27:12,002 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_048610af-a185-4893-b0d5-9b664cb27fe2/sv-benchmarks/c/goblint-regression/06-symbeq_15-list_entry_nr.i [2022-11-16 12:27:12,023 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_048610af-a185-4893-b0d5-9b664cb27fe2/bin/uautomizer-tPACEb0tL8/data/bcc9ca1d0/982e4dc31c52455daa28e2e95dd2af31/FLAGf6cc9a6d9 [2022-11-16 12:27:12,234 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_048610af-a185-4893-b0d5-9b664cb27fe2/bin/uautomizer-tPACEb0tL8/data/bcc9ca1d0/982e4dc31c52455daa28e2e95dd2af31 [2022-11-16 12:27:12,237 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:27:12,238 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:27:12,240 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:27:12,240 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:27:12,250 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:27:12,250 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:27:12" (1/1) ... [2022-11-16 12:27:12,252 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24fbbeb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:27:12, skipping insertion in model container [2022-11-16 12:27:12,252 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:27:12" (1/1) ... [2022-11-16 12:27:12,266 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:27:12,326 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:27:13,225 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:27:13,236 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:27:13,289 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:27:13,371 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:27:13,372 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:27:13 WrapperNode [2022-11-16 12:27:13,372 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:27:13,373 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:27:13,374 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:27:13,374 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:27:13,383 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:27:13" (1/1) ... [2022-11-16 12:27:13,418 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:27:13" (1/1) ... [2022-11-16 12:27:13,485 INFO L138 Inliner]: procedures = 365, calls = 15, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 93 [2022-11-16 12:27:13,487 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:27:13,488 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:27:13,488 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:27:13,488 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:27:13,500 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:27:13" (1/1) ... [2022-11-16 12:27:13,500 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:27:13" (1/1) ... [2022-11-16 12:27:13,517 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:27:13" (1/1) ... [2022-11-16 12:27:13,526 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:27:13" (1/1) ... [2022-11-16 12:27:13,536 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:27:13" (1/1) ... [2022-11-16 12:27:13,542 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:27:13" (1/1) ... [2022-11-16 12:27:13,551 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:27:13" (1/1) ... [2022-11-16 12:27:13,552 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:27:13" (1/1) ... [2022-11-16 12:27:13,555 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:27:13,563 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:27:13,564 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:27:13,564 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:27:13,565 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:27:13" (1/1) ... [2022-11-16 12:27:13,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:27:13,587 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_048610af-a185-4893-b0d5-9b664cb27fe2/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:27:13,605 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_048610af-a185-4893-b0d5-9b664cb27fe2/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:27:13,632 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_048610af-a185-4893-b0d5-9b664cb27fe2/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:27:13,660 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 12:27:13,660 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 12:27:13,661 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 12:27:13,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 12:27:13,661 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-16 12:27:13,661 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 12:27:13,662 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-16 12:27:13,663 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-16 12:27:13,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:27:13,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:27:13,665 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 12:27:13,928 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:27:13,931 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:27:14,218 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:27:14,227 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:27:14,227 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 12:27:14,230 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:27:14 BoogieIcfgContainer [2022-11-16 12:27:14,230 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:27:14,264 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:27:14,264 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:27:14,268 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:27:14,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:27:12" (1/3) ... [2022-11-16 12:27:14,269 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c961505 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:27:14, skipping insertion in model container [2022-11-16 12:27:14,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:27:13" (2/3) ... [2022-11-16 12:27:14,270 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c961505 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:27:14, skipping insertion in model container [2022-11-16 12:27:14,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:27:14" (3/3) ... [2022-11-16 12:27:14,271 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_15-list_entry_nr.i [2022-11-16 12:27:14,281 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 12:27:14,293 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:27:14,293 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2022-11-16 12:27:14,306 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 12:27:14,395 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-16 12:27:14,442 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 119 places, 115 transitions, 235 flow [2022-11-16 12:27:14,510 INFO L130 PetriNetUnfolder]: 0/114 cut-off events. [2022-11-16 12:27:14,511 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:27:14,515 INFO L83 FinitePrefix]: Finished finitePrefix Result has 118 conditions, 114 events. 0/114 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 82 event pairs, 0 based on Foata normal form. 0/105 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-11-16 12:27:14,515 INFO L82 GeneralOperation]: Start removeDead. Operand has 119 places, 115 transitions, 235 flow [2022-11-16 12:27:14,522 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 118 places, 114 transitions, 231 flow [2022-11-16 12:27:14,535 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:27:14,544 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@11f67bae, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:27:14,544 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2022-11-16 12:27:14,550 INFO L130 PetriNetUnfolder]: 0/14 cut-off events. [2022-11-16 12:27:14,551 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:27:14,551 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:27:14,552 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:27:14,553 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-16 12:27:14,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:27:14,560 INFO L85 PathProgramCache]: Analyzing trace with hash 1485637970, now seen corresponding path program 1 times [2022-11-16 12:27:14,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:27:14,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343495076] [2022-11-16 12:27:14,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:27:14,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:27:14,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:14,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:27:14,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:27:14,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343495076] [2022-11-16 12:27:14,879 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343495076] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:27:14,879 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:27:14,880 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:27:14,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468220868] [2022-11-16 12:27:14,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:27:14,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:27:14,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:27:14,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:27:14,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:27:14,937 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 115 [2022-11-16 12:27:14,941 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 114 transitions, 231 flow. Second operand has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:14,941 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:27:14,941 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 115 [2022-11-16 12:27:14,943 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:27:15,166 INFO L130 PetriNetUnfolder]: 9/263 cut-off events. [2022-11-16 12:27:15,167 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-16 12:27:15,169 INFO L83 FinitePrefix]: Finished finitePrefix Result has 301 conditions, 263 events. 9/263 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 935 event pairs, 9 based on Foata normal form. 0/240 useless extension candidates. Maximal degree in co-relation 247. Up to 32 conditions per place. [2022-11-16 12:27:15,172 INFO L137 encePairwiseOnDemand]: 112/115 looper letters, 13 selfloop transitions, 2 changer transitions 0/113 dead transitions. [2022-11-16 12:27:15,172 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 113 transitions, 259 flow [2022-11-16 12:27:15,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:27:15,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:27:15,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 313 transitions. [2022-11-16 12:27:15,195 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9072463768115943 [2022-11-16 12:27:15,196 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 313 transitions. [2022-11-16 12:27:15,197 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 313 transitions. [2022-11-16 12:27:15,199 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:27:15,202 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 313 transitions. [2022-11-16 12:27:15,206 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:15,213 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 115.0) internal successors, (460), 4 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:15,213 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 115.0) internal successors, (460), 4 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:15,215 INFO L175 Difference]: Start difference. First operand has 118 places, 114 transitions, 231 flow. Second operand 3 states and 313 transitions. [2022-11-16 12:27:15,217 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 113 transitions, 259 flow [2022-11-16 12:27:15,221 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 113 transitions, 258 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 12:27:15,225 INFO L231 Difference]: Finished difference. Result has 118 places, 113 transitions, 232 flow [2022-11-16 12:27:15,227 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=228, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=232, PETRI_PLACES=118, PETRI_TRANSITIONS=113} [2022-11-16 12:27:15,232 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, 0 predicate places. [2022-11-16 12:27:15,232 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 113 transitions, 232 flow [2022-11-16 12:27:15,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:15,233 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:27:15,233 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:27:15,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 12:27:15,234 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-16 12:27:15,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:27:15,235 INFO L85 PathProgramCache]: Analyzing trace with hash -842156130, now seen corresponding path program 1 times [2022-11-16 12:27:15,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:27:15,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011042428] [2022-11-16 12:27:15,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:27:15,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:27:15,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:15,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:27:15,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:27:15,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011042428] [2022-11-16 12:27:15,295 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011042428] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:27:15,296 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:27:15,296 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:27:15,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811313513] [2022-11-16 12:27:15,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:27:15,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:27:15,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:27:15,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:27:15,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:27:15,300 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 115 [2022-11-16 12:27:15,301 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 113 transitions, 232 flow. Second operand has 3 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:15,301 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:27:15,301 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 115 [2022-11-16 12:27:15,301 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:27:15,384 INFO L130 PetriNetUnfolder]: 4/216 cut-off events. [2022-11-16 12:27:15,385 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-16 12:27:15,389 INFO L83 FinitePrefix]: Finished finitePrefix Result has 240 conditions, 216 events. 4/216 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 632 event pairs, 4 based on Foata normal form. 0/204 useless extension candidates. Maximal degree in co-relation 216. Up to 15 conditions per place. [2022-11-16 12:27:15,398 INFO L137 encePairwiseOnDemand]: 111/115 looper letters, 8 selfloop transitions, 1 changer transitions 0/110 dead transitions. [2022-11-16 12:27:15,399 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 110 transitions, 244 flow [2022-11-16 12:27:15,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:27:15,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:27:15,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 318 transitions. [2022-11-16 12:27:15,407 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9217391304347826 [2022-11-16 12:27:15,409 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 318 transitions. [2022-11-16 12:27:15,410 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 318 transitions. [2022-11-16 12:27:15,410 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:27:15,413 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 318 transitions. [2022-11-16 12:27:15,414 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:15,418 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 115.0) internal successors, (460), 4 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:15,422 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 115.0) internal successors, (460), 4 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:15,422 INFO L175 Difference]: Start difference. First operand has 118 places, 113 transitions, 232 flow. Second operand 3 states and 318 transitions. [2022-11-16 12:27:15,422 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 110 transitions, 244 flow [2022-11-16 12:27:15,424 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 110 transitions, 240 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:27:15,427 INFO L231 Difference]: Finished difference. Result has 115 places, 110 transitions, 224 flow [2022-11-16 12:27:15,429 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=224, PETRI_PLACES=115, PETRI_TRANSITIONS=110} [2022-11-16 12:27:15,430 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, -3 predicate places. [2022-11-16 12:27:15,432 INFO L495 AbstractCegarLoop]: Abstraction has has 115 places, 110 transitions, 224 flow [2022-11-16 12:27:15,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:15,433 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:27:15,434 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:27:15,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 12:27:15,434 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-16 12:27:15,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:27:15,436 INFO L85 PathProgramCache]: Analyzing trace with hash 838099336, now seen corresponding path program 1 times [2022-11-16 12:27:15,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:27:15,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849887718] [2022-11-16 12:27:15,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:27:15,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:27:15,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:16,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:27:16,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:27:16,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849887718] [2022-11-16 12:27:16,092 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849887718] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:27:16,092 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:27:16,092 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:27:16,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072482818] [2022-11-16 12:27:16,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:27:16,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:27:16,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:27:16,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:27:16,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:27:16,097 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 115 [2022-11-16 12:27:16,098 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 110 transitions, 224 flow. Second operand has 6 states, 6 states have (on average 79.5) internal successors, (477), 6 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:16,098 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:27:16,098 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 115 [2022-11-16 12:27:16,099 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:27:16,311 INFO L130 PetriNetUnfolder]: 144/622 cut-off events. [2022-11-16 12:27:16,311 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:27:16,315 INFO L83 FinitePrefix]: Finished finitePrefix Result has 952 conditions, 622 events. 144/622 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 3251 event pairs, 144 based on Foata normal form. 0/564 useless extension candidates. Maximal degree in co-relation 930. Up to 320 conditions per place. [2022-11-16 12:27:16,318 INFO L137 encePairwiseOnDemand]: 109/115 looper letters, 31 selfloop transitions, 5 changer transitions 0/109 dead transitions. [2022-11-16 12:27:16,318 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 109 transitions, 294 flow [2022-11-16 12:27:16,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:27:16,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:27:16,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 505 transitions. [2022-11-16 12:27:16,323 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7318840579710145 [2022-11-16 12:27:16,324 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 505 transitions. [2022-11-16 12:27:16,324 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 505 transitions. [2022-11-16 12:27:16,324 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:27:16,325 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 505 transitions. [2022-11-16 12:27:16,327 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 84.16666666666667) internal successors, (505), 6 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:16,331 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 115.0) internal successors, (805), 7 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:16,334 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 115.0) internal successors, (805), 7 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:16,334 INFO L175 Difference]: Start difference. First operand has 115 places, 110 transitions, 224 flow. Second operand 6 states and 505 transitions. [2022-11-16 12:27:16,334 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 109 transitions, 294 flow [2022-11-16 12:27:16,337 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 109 transitions, 293 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 12:27:16,341 INFO L231 Difference]: Finished difference. Result has 118 places, 109 transitions, 231 flow [2022-11-16 12:27:16,341 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=221, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=231, PETRI_PLACES=118, PETRI_TRANSITIONS=109} [2022-11-16 12:27:16,343 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, 0 predicate places. [2022-11-16 12:27:16,343 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 109 transitions, 231 flow [2022-11-16 12:27:16,344 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 79.5) internal successors, (477), 6 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:16,344 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:27:16,345 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:27:16,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 12:27:16,345 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-16 12:27:16,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:27:16,347 INFO L85 PathProgramCache]: Analyzing trace with hash 1006176948, now seen corresponding path program 1 times [2022-11-16 12:27:16,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:27:16,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773809850] [2022-11-16 12:27:16,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:27:16,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:27:16,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:16,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:27:16,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:27:16,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773809850] [2022-11-16 12:27:16,935 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773809850] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:27:16,935 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:27:16,936 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:27:16,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150719254] [2022-11-16 12:27:16,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:27:16,947 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:27:16,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:27:16,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:27:16,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:27:16,954 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 115 [2022-11-16 12:27:16,957 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 109 transitions, 231 flow. Second operand has 6 states, 6 states have (on average 80.5) internal successors, (483), 6 states have internal predecessors, (483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:16,957 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:27:16,958 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 115 [2022-11-16 12:27:16,958 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:27:17,400 INFO L130 PetriNetUnfolder]: 239/878 cut-off events. [2022-11-16 12:27:17,401 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-16 12:27:17,402 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1409 conditions, 878 events. 239/878 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 5033 event pairs, 119 based on Foata normal form. 0/807 useless extension candidates. Maximal degree in co-relation 1387. Up to 389 conditions per place. [2022-11-16 12:27:17,406 INFO L137 encePairwiseOnDemand]: 104/115 looper letters, 68 selfloop transitions, 22 changer transitions 0/163 dead transitions. [2022-11-16 12:27:17,407 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 163 transitions, 519 flow [2022-11-16 12:27:17,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:27:17,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:27:17,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 559 transitions. [2022-11-16 12:27:17,410 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8101449275362319 [2022-11-16 12:27:17,410 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 559 transitions. [2022-11-16 12:27:17,410 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 559 transitions. [2022-11-16 12:27:17,411 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:27:17,411 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 559 transitions. [2022-11-16 12:27:17,413 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 93.16666666666667) internal successors, (559), 6 states have internal predecessors, (559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:17,415 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 115.0) internal successors, (805), 7 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:17,416 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 115.0) internal successors, (805), 7 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:17,417 INFO L175 Difference]: Start difference. First operand has 118 places, 109 transitions, 231 flow. Second operand 6 states and 559 transitions. [2022-11-16 12:27:17,417 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 163 transitions, 519 flow [2022-11-16 12:27:17,423 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 163 transitions, 509 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 12:27:17,428 INFO L231 Difference]: Finished difference. Result has 123 places, 130 transitions, 371 flow [2022-11-16 12:27:17,428 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=221, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=371, PETRI_PLACES=123, PETRI_TRANSITIONS=130} [2022-11-16 12:27:17,430 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, 5 predicate places. [2022-11-16 12:27:17,430 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 130 transitions, 371 flow [2022-11-16 12:27:17,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 80.5) internal successors, (483), 6 states have internal predecessors, (483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:17,432 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:27:17,432 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:27:17,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 12:27:17,434 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-16 12:27:17,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:27:17,435 INFO L85 PathProgramCache]: Analyzing trace with hash 72490025, now seen corresponding path program 1 times [2022-11-16 12:27:17,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:27:17,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395801802] [2022-11-16 12:27:17,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:27:17,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:27:17,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:17,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:27:17,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:27:17,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395801802] [2022-11-16 12:27:17,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395801802] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:27:17,929 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:27:17,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:27:17,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994705859] [2022-11-16 12:27:17,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:27:17,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:27:17,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:27:17,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:27:17,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:27:17,933 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 115 [2022-11-16 12:27:17,935 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 130 transitions, 371 flow. Second operand has 6 states, 6 states have (on average 80.5) internal successors, (483), 6 states have internal predecessors, (483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:17,935 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:27:17,935 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 115 [2022-11-16 12:27:17,936 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:27:18,430 INFO L130 PetriNetUnfolder]: 258/935 cut-off events. [2022-11-16 12:27:18,430 INFO L131 PetriNetUnfolder]: For 281/289 co-relation queries the response was YES. [2022-11-16 12:27:18,434 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1847 conditions, 935 events. 258/935 cut-off events. For 281/289 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 5547 event pairs, 106 based on Foata normal form. 0/878 useless extension candidates. Maximal degree in co-relation 1821. Up to 444 conditions per place. [2022-11-16 12:27:18,438 INFO L137 encePairwiseOnDemand]: 104/115 looper letters, 81 selfloop transitions, 26 changer transitions 0/180 dead transitions. [2022-11-16 12:27:18,438 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 180 transitions, 775 flow [2022-11-16 12:27:18,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:27:18,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:27:18,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 555 transitions. [2022-11-16 12:27:18,442 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8043478260869565 [2022-11-16 12:27:18,442 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 555 transitions. [2022-11-16 12:27:18,442 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 555 transitions. [2022-11-16 12:27:18,443 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:27:18,443 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 555 transitions. [2022-11-16 12:27:18,445 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 92.5) internal successors, (555), 6 states have internal predecessors, (555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:18,447 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 115.0) internal successors, (805), 7 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:18,448 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 115.0) internal successors, (805), 7 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:18,449 INFO L175 Difference]: Start difference. First operand has 123 places, 130 transitions, 371 flow. Second operand 6 states and 555 transitions. [2022-11-16 12:27:18,449 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 180 transitions, 775 flow [2022-11-16 12:27:18,455 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 180 transitions, 775 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 12:27:18,459 INFO L231 Difference]: Finished difference. Result has 133 places, 151 transitions, 555 flow [2022-11-16 12:27:18,459 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=371, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=555, PETRI_PLACES=133, PETRI_TRANSITIONS=151} [2022-11-16 12:27:18,462 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, 15 predicate places. [2022-11-16 12:27:18,462 INFO L495 AbstractCegarLoop]: Abstraction has has 133 places, 151 transitions, 555 flow [2022-11-16 12:27:18,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 80.5) internal successors, (483), 6 states have internal predecessors, (483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:18,463 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:27:18,463 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:27:18,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 12:27:18,465 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-16 12:27:18,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:27:18,468 INFO L85 PathProgramCache]: Analyzing trace with hash 1581779769, now seen corresponding path program 1 times [2022-11-16 12:27:18,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:27:18,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354394092] [2022-11-16 12:27:18,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:27:18,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:27:18,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:18,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:27:18,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:27:18,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354394092] [2022-11-16 12:27:18,897 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354394092] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:27:18,897 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:27:18,898 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:27:18,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232811457] [2022-11-16 12:27:18,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:27:18,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:27:18,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:27:18,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:27:18,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:27:18,902 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 115 [2022-11-16 12:27:18,903 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 151 transitions, 555 flow. Second operand has 6 states, 6 states have (on average 79.66666666666667) internal successors, (478), 6 states have internal predecessors, (478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:18,903 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:27:18,903 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 115 [2022-11-16 12:27:18,903 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:27:19,435 INFO L130 PetriNetUnfolder]: 350/1245 cut-off events. [2022-11-16 12:27:19,435 INFO L131 PetriNetUnfolder]: For 646/659 co-relation queries the response was YES. [2022-11-16 12:27:19,439 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2800 conditions, 1245 events. 350/1245 cut-off events. For 646/659 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 8209 event pairs, 132 based on Foata normal form. 4/1188 useless extension candidates. Maximal degree in co-relation 2769. Up to 644 conditions per place. [2022-11-16 12:27:19,445 INFO L137 encePairwiseOnDemand]: 100/115 looper letters, 87 selfloop transitions, 53 changer transitions 4/215 dead transitions. [2022-11-16 12:27:19,445 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 215 transitions, 1131 flow [2022-11-16 12:27:19,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:27:19,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:27:19,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 548 transitions. [2022-11-16 12:27:19,448 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7942028985507247 [2022-11-16 12:27:19,448 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 548 transitions. [2022-11-16 12:27:19,448 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 548 transitions. [2022-11-16 12:27:19,449 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:27:19,449 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 548 transitions. [2022-11-16 12:27:19,451 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 91.33333333333333) internal successors, (548), 6 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:19,453 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 115.0) internal successors, (805), 7 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:19,453 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 115.0) internal successors, (805), 7 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:19,453 INFO L175 Difference]: Start difference. First operand has 133 places, 151 transitions, 555 flow. Second operand 6 states and 548 transitions. [2022-11-16 12:27:19,454 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 215 transitions, 1131 flow [2022-11-16 12:27:19,462 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 215 transitions, 1131 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 12:27:19,466 INFO L231 Difference]: Finished difference. Result has 143 places, 198 transitions, 1037 flow [2022-11-16 12:27:19,467 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=555, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1037, PETRI_PLACES=143, PETRI_TRANSITIONS=198} [2022-11-16 12:27:19,469 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, 25 predicate places. [2022-11-16 12:27:19,470 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 198 transitions, 1037 flow [2022-11-16 12:27:19,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 79.66666666666667) internal successors, (478), 6 states have internal predecessors, (478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:19,470 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:27:19,471 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:27:19,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 12:27:19,471 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-16 12:27:19,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:27:19,472 INFO L85 PathProgramCache]: Analyzing trace with hash 138758537, now seen corresponding path program 1 times [2022-11-16 12:27:19,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:27:19,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326294014] [2022-11-16 12:27:19,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:27:19,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:27:19,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:19,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:27:19,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:27:19,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326294014] [2022-11-16 12:27:19,931 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326294014] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:27:19,931 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:27:19,932 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:27:19,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657068857] [2022-11-16 12:27:19,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:27:19,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:27:19,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:27:19,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:27:19,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:27:19,944 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 115 [2022-11-16 12:27:19,945 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 198 transitions, 1037 flow. Second operand has 6 states, 6 states have (on average 79.66666666666667) internal successors, (478), 6 states have internal predecessors, (478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:19,946 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:27:19,946 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 115 [2022-11-16 12:27:19,947 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:27:20,505 INFO L130 PetriNetUnfolder]: 442/1423 cut-off events. [2022-11-16 12:27:20,505 INFO L131 PetriNetUnfolder]: For 1570/1586 co-relation queries the response was YES. [2022-11-16 12:27:20,511 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4035 conditions, 1423 events. 442/1423 cut-off events. For 1570/1586 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 9323 event pairs, 130 based on Foata normal form. 0/1392 useless extension candidates. Maximal degree in co-relation 3999. Up to 796 conditions per place. [2022-11-16 12:27:20,518 INFO L137 encePairwiseOnDemand]: 100/115 looper letters, 124 selfloop transitions, 58 changer transitions 15/269 dead transitions. [2022-11-16 12:27:20,519 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 269 transitions, 1849 flow [2022-11-16 12:27:20,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:27:20,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:27:20,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 548 transitions. [2022-11-16 12:27:20,522 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7942028985507247 [2022-11-16 12:27:20,522 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 548 transitions. [2022-11-16 12:27:20,522 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 548 transitions. [2022-11-16 12:27:20,523 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:27:20,523 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 548 transitions. [2022-11-16 12:27:20,525 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 91.33333333333333) internal successors, (548), 6 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:20,527 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 115.0) internal successors, (805), 7 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:20,527 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 115.0) internal successors, (805), 7 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:20,527 INFO L175 Difference]: Start difference. First operand has 143 places, 198 transitions, 1037 flow. Second operand 6 states and 548 transitions. [2022-11-16 12:27:20,528 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 269 transitions, 1849 flow [2022-11-16 12:27:20,543 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 269 transitions, 1785 flow, removed 32 selfloop flow, removed 0 redundant places. [2022-11-16 12:27:20,553 INFO L231 Difference]: Finished difference. Result has 153 places, 242 transitions, 1529 flow [2022-11-16 12:27:20,554 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=979, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=198, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1529, PETRI_PLACES=153, PETRI_TRANSITIONS=242} [2022-11-16 12:27:20,555 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, 35 predicate places. [2022-11-16 12:27:20,555 INFO L495 AbstractCegarLoop]: Abstraction has has 153 places, 242 transitions, 1529 flow [2022-11-16 12:27:20,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 79.66666666666667) internal successors, (478), 6 states have internal predecessors, (478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:20,556 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:27:20,556 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:27:20,556 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 12:27:20,556 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-16 12:27:20,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:27:20,557 INFO L85 PathProgramCache]: Analyzing trace with hash 22527780, now seen corresponding path program 1 times [2022-11-16 12:27:20,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:27:20,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802353593] [2022-11-16 12:27:20,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:27:20,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:27:20,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:21,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:27:21,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:27:21,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802353593] [2022-11-16 12:27:21,613 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802353593] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:27:21,614 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:27:21,614 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-16 12:27:21,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85819786] [2022-11-16 12:27:21,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:27:21,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 12:27:21,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:27:21,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 12:27:21,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:27:21,617 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2022-11-16 12:27:21,619 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 242 transitions, 1529 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:21,619 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:27:21,619 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2022-11-16 12:27:21,619 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:27:23,052 INFO L130 PetriNetUnfolder]: 637/1932 cut-off events. [2022-11-16 12:27:23,053 INFO L131 PetriNetUnfolder]: For 3220/3220 co-relation queries the response was YES. [2022-11-16 12:27:23,061 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6021 conditions, 1932 events. 637/1932 cut-off events. For 3220/3220 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 13003 event pairs, 65 based on Foata normal form. 13/1935 useless extension candidates. Maximal degree in co-relation 5975. Up to 936 conditions per place. [2022-11-16 12:27:23,070 INFO L137 encePairwiseOnDemand]: 102/115 looper letters, 253 selfloop transitions, 9 changer transitions 66/391 dead transitions. [2022-11-16 12:27:23,070 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 391 transitions, 3097 flow [2022-11-16 12:27:23,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 12:27:23,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-16 12:27:23,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 917 transitions. [2022-11-16 12:27:23,074 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.724901185770751 [2022-11-16 12:27:23,074 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 917 transitions. [2022-11-16 12:27:23,074 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 917 transitions. [2022-11-16 12:27:23,075 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:27:23,075 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 917 transitions. [2022-11-16 12:27:23,078 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 83.36363636363636) internal successors, (917), 11 states have internal predecessors, (917), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:23,081 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:23,083 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:23,083 INFO L175 Difference]: Start difference. First operand has 153 places, 242 transitions, 1529 flow. Second operand 11 states and 917 transitions. [2022-11-16 12:27:23,083 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 391 transitions, 3097 flow [2022-11-16 12:27:23,114 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 391 transitions, 3029 flow, removed 34 selfloop flow, removed 0 redundant places. [2022-11-16 12:27:23,121 INFO L231 Difference]: Finished difference. Result has 167 places, 242 transitions, 1490 flow [2022-11-16 12:27:23,122 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=1461, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=242, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=233, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1490, PETRI_PLACES=167, PETRI_TRANSITIONS=242} [2022-11-16 12:27:23,124 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, 49 predicate places. [2022-11-16 12:27:23,124 INFO L495 AbstractCegarLoop]: Abstraction has has 167 places, 242 transitions, 1490 flow [2022-11-16 12:27:23,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:23,125 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:27:23,125 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:27:23,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 12:27:23,126 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-16 12:27:23,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:27:23,127 INFO L85 PathProgramCache]: Analyzing trace with hash 908891550, now seen corresponding path program 2 times [2022-11-16 12:27:23,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:27:23,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877153459] [2022-11-16 12:27:23,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:27:23,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:27:23,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:24,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:27:24,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:27:24,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877153459] [2022-11-16 12:27:24,620 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877153459] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:27:24,621 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:27:24,621 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-16 12:27:24,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904276391] [2022-11-16 12:27:24,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:27:24,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 12:27:24,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:27:24,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 12:27:24,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:27:24,625 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2022-11-16 12:27:24,626 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 242 transitions, 1490 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:24,627 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:27:24,627 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2022-11-16 12:27:24,627 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:27:26,325 INFO L130 PetriNetUnfolder]: 1146/3413 cut-off events. [2022-11-16 12:27:26,326 INFO L131 PetriNetUnfolder]: For 6117/6119 co-relation queries the response was YES. [2022-11-16 12:27:26,342 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11429 conditions, 3413 events. 1146/3413 cut-off events. For 6117/6119 co-relation queries the response was YES. Maximal size of possible extension queue 141. Compared 26643 event pairs, 136 based on Foata normal form. 14/3407 useless extension candidates. Maximal degree in co-relation 11375. Up to 1174 conditions per place. [2022-11-16 12:27:26,358 INFO L137 encePairwiseOnDemand]: 102/115 looper letters, 417 selfloop transitions, 10 changer transitions 48/538 dead transitions. [2022-11-16 12:27:26,358 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 538 transitions, 4603 flow [2022-11-16 12:27:26,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 12:27:26,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-16 12:27:26,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 933 transitions. [2022-11-16 12:27:26,362 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7375494071146245 [2022-11-16 12:27:26,362 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 933 transitions. [2022-11-16 12:27:26,362 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 933 transitions. [2022-11-16 12:27:26,363 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:27:26,363 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 933 transitions. [2022-11-16 12:27:26,366 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 84.81818181818181) internal successors, (933), 11 states have internal predecessors, (933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:26,369 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:26,370 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:26,370 INFO L175 Difference]: Start difference. First operand has 167 places, 242 transitions, 1490 flow. Second operand 11 states and 933 transitions. [2022-11-16 12:27:26,370 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 538 transitions, 4603 flow [2022-11-16 12:27:26,427 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 538 transitions, 4543 flow, removed 9 selfloop flow, removed 9 redundant places. [2022-11-16 12:27:26,433 INFO L231 Difference]: Finished difference. Result has 172 places, 248 transitions, 1538 flow [2022-11-16 12:27:26,434 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=1469, PETRI_DIFFERENCE_MINUEND_PLACES=155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=242, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=232, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1538, PETRI_PLACES=172, PETRI_TRANSITIONS=248} [2022-11-16 12:27:26,435 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, 54 predicate places. [2022-11-16 12:27:26,435 INFO L495 AbstractCegarLoop]: Abstraction has has 172 places, 248 transitions, 1538 flow [2022-11-16 12:27:26,436 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:26,436 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:27:26,436 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:27:26,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 12:27:26,436 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-16 12:27:26,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:27:26,437 INFO L85 PathProgramCache]: Analyzing trace with hash 419805406, now seen corresponding path program 3 times [2022-11-16 12:27:26,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:27:26,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130657736] [2022-11-16 12:27:26,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:27:26,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:27:26,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:27,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:27:27,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:27:27,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130657736] [2022-11-16 12:27:27,239 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130657736] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:27:27,239 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:27:27,239 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-16 12:27:27,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117059222] [2022-11-16 12:27:27,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:27:27,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 12:27:27,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:27:27,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 12:27:27,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:27:27,242 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2022-11-16 12:27:27,243 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 248 transitions, 1538 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:27,243 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:27:27,244 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2022-11-16 12:27:27,244 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:27:28,909 INFO L130 PetriNetUnfolder]: 1156/3455 cut-off events. [2022-11-16 12:27:28,909 INFO L131 PetriNetUnfolder]: For 6751/6766 co-relation queries the response was YES. [2022-11-16 12:27:28,924 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11784 conditions, 3455 events. 1156/3455 cut-off events. For 6751/6766 co-relation queries the response was YES. Maximal size of possible extension queue 140. Compared 26977 event pairs, 125 based on Foata normal form. 21/3456 useless extension candidates. Maximal degree in co-relation 11726. Up to 1846 conditions per place. [2022-11-16 12:27:28,939 INFO L137 encePairwiseOnDemand]: 102/115 looper letters, 240 selfloop transitions, 15 changer transitions 75/393 dead transitions. [2022-11-16 12:27:28,939 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 393 transitions, 3166 flow [2022-11-16 12:27:28,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 12:27:28,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-16 12:27:28,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 913 transitions. [2022-11-16 12:27:28,943 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7217391304347827 [2022-11-16 12:27:28,943 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 913 transitions. [2022-11-16 12:27:28,944 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 913 transitions. [2022-11-16 12:27:28,944 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:27:28,944 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 913 transitions. [2022-11-16 12:27:28,947 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 83.0) internal successors, (913), 11 states have internal predecessors, (913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:28,950 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:28,952 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:28,952 INFO L175 Difference]: Start difference. First operand has 172 places, 248 transitions, 1538 flow. Second operand 11 states and 913 transitions. [2022-11-16 12:27:28,952 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 393 transitions, 3166 flow [2022-11-16 12:27:29,026 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 393 transitions, 3133 flow, removed 11 selfloop flow, removed 5 redundant places. [2022-11-16 12:27:29,032 INFO L231 Difference]: Finished difference. Result has 179 places, 248 transitions, 1571 flow [2022-11-16 12:27:29,033 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=1527, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=248, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=233, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1571, PETRI_PLACES=179, PETRI_TRANSITIONS=248} [2022-11-16 12:27:29,034 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, 61 predicate places. [2022-11-16 12:27:29,034 INFO L495 AbstractCegarLoop]: Abstraction has has 179 places, 248 transitions, 1571 flow [2022-11-16 12:27:29,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:29,035 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:27:29,035 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:27:29,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 12:27:29,036 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-16 12:27:29,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:27:29,036 INFO L85 PathProgramCache]: Analyzing trace with hash -1219974222, now seen corresponding path program 4 times [2022-11-16 12:27:29,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:27:29,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688788300] [2022-11-16 12:27:29,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:27:29,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:27:29,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:30,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:27:30,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:27:30,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688788300] [2022-11-16 12:27:30,333 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688788300] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:27:30,333 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:27:30,333 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-16 12:27:30,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222928870] [2022-11-16 12:27:30,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:27:30,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 12:27:30,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:27:30,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 12:27:30,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:27:30,336 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2022-11-16 12:27:30,337 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 248 transitions, 1571 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:30,337 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:27:30,337 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2022-11-16 12:27:30,338 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:27:32,467 INFO L130 PetriNetUnfolder]: 1617/4905 cut-off events. [2022-11-16 12:27:32,468 INFO L131 PetriNetUnfolder]: For 10790/10806 co-relation queries the response was YES. [2022-11-16 12:27:32,503 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17191 conditions, 4905 events. 1617/4905 cut-off events. For 10790/10806 co-relation queries the response was YES. Maximal size of possible extension queue 207. Compared 42149 event pairs, 245 based on Foata normal form. 22/4896 useless extension candidates. Maximal degree in co-relation 17131. Up to 2112 conditions per place. [2022-11-16 12:27:32,535 INFO L137 encePairwiseOnDemand]: 102/115 looper letters, 413 selfloop transitions, 10 changer transitions 59/545 dead transitions. [2022-11-16 12:27:32,535 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 545 transitions, 4800 flow [2022-11-16 12:27:32,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 12:27:32,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-16 12:27:32,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 929 transitions. [2022-11-16 12:27:32,539 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7343873517786561 [2022-11-16 12:27:32,539 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 929 transitions. [2022-11-16 12:27:32,540 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 929 transitions. [2022-11-16 12:27:32,541 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:27:32,541 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 929 transitions. [2022-11-16 12:27:32,544 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 84.45454545454545) internal successors, (929), 11 states have internal predecessors, (929), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:32,547 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:32,548 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:32,548 INFO L175 Difference]: Start difference. First operand has 179 places, 248 transitions, 1571 flow. Second operand 11 states and 929 transitions. [2022-11-16 12:27:32,548 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 545 transitions, 4800 flow [2022-11-16 12:27:32,624 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 177 places, 545 transitions, 4725 flow, removed 4 selfloop flow, removed 9 redundant places. [2022-11-16 12:27:32,633 INFO L231 Difference]: Finished difference. Result has 182 places, 252 transitions, 1616 flow [2022-11-16 12:27:32,634 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=1541, PETRI_DIFFERENCE_MINUEND_PLACES=167, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=248, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=238, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1616, PETRI_PLACES=182, PETRI_TRANSITIONS=252} [2022-11-16 12:27:32,635 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, 64 predicate places. [2022-11-16 12:27:32,636 INFO L495 AbstractCegarLoop]: Abstraction has has 182 places, 252 transitions, 1616 flow [2022-11-16 12:27:32,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:32,637 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:27:32,637 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:27:32,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 12:27:32,637 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-16 12:27:32,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:27:32,638 INFO L85 PathProgramCache]: Analyzing trace with hash -991942528, now seen corresponding path program 5 times [2022-11-16 12:27:32,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:27:32,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925904874] [2022-11-16 12:27:32,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:27:32,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:27:32,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:33,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:27:33,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:27:33,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925904874] [2022-11-16 12:27:33,447 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925904874] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:27:33,447 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:27:33,448 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-16 12:27:33,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006504554] [2022-11-16 12:27:33,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:27:33,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 12:27:33,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:27:33,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 12:27:33,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:27:33,450 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2022-11-16 12:27:33,451 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 252 transitions, 1616 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:33,451 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:27:33,451 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2022-11-16 12:27:33,451 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:27:35,628 INFO L130 PetriNetUnfolder]: 2109/6283 cut-off events. [2022-11-16 12:27:35,629 INFO L131 PetriNetUnfolder]: For 14614/14647 co-relation queries the response was YES. [2022-11-16 12:27:35,692 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22181 conditions, 6283 events. 2109/6283 cut-off events. For 14614/14647 co-relation queries the response was YES. Maximal size of possible extension queue 275. Compared 56997 event pairs, 334 based on Foata normal form. 27/6269 useless extension candidates. Maximal degree in co-relation 22119. Up to 3064 conditions per place. [2022-11-16 12:27:35,725 INFO L137 encePairwiseOnDemand]: 102/115 looper letters, 410 selfloop transitions, 14 changer transitions 59/546 dead transitions. [2022-11-16 12:27:35,725 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 546 transitions, 4786 flow [2022-11-16 12:27:35,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 12:27:35,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-16 12:27:35,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 929 transitions. [2022-11-16 12:27:35,729 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7343873517786561 [2022-11-16 12:27:35,730 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 929 transitions. [2022-11-16 12:27:35,730 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 929 transitions. [2022-11-16 12:27:35,731 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:27:35,731 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 929 transitions. [2022-11-16 12:27:35,735 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 84.45454545454545) internal successors, (929), 11 states have internal predecessors, (929), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:35,738 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:35,739 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:35,739 INFO L175 Difference]: Start difference. First operand has 182 places, 252 transitions, 1616 flow. Second operand 11 states and 929 transitions. [2022-11-16 12:27:35,740 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 546 transitions, 4786 flow [2022-11-16 12:27:35,841 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 546 transitions, 4749 flow, removed 2 selfloop flow, removed 7 redundant places. [2022-11-16 12:27:35,848 INFO L231 Difference]: Finished difference. Result has 188 places, 256 transitions, 1681 flow [2022-11-16 12:27:35,849 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=1601, PETRI_DIFFERENCE_MINUEND_PLACES=173, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=252, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=238, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1681, PETRI_PLACES=188, PETRI_TRANSITIONS=256} [2022-11-16 12:27:35,850 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, 70 predicate places. [2022-11-16 12:27:35,850 INFO L495 AbstractCegarLoop]: Abstraction has has 188 places, 256 transitions, 1681 flow [2022-11-16 12:27:35,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:35,851 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:27:35,851 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:27:35,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-16 12:27:35,851 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-16 12:27:35,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:27:35,852 INFO L85 PathProgramCache]: Analyzing trace with hash 1443695394, now seen corresponding path program 6 times [2022-11-16 12:27:35,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:27:35,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966229849] [2022-11-16 12:27:35,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:27:35,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:27:35,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:36,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:27:36,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:27:36,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966229849] [2022-11-16 12:27:36,563 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966229849] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:27:36,563 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:27:36,563 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-16 12:27:36,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508597365] [2022-11-16 12:27:36,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:27:36,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 12:27:36,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:27:36,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 12:27:36,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:27:36,566 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2022-11-16 12:27:36,567 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 256 transitions, 1681 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:36,568 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:27:36,568 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2022-11-16 12:27:36,568 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:27:39,708 INFO L130 PetriNetUnfolder]: 2614/8015 cut-off events. [2022-11-16 12:27:39,709 INFO L131 PetriNetUnfolder]: For 19878/19911 co-relation queries the response was YES. [2022-11-16 12:27:39,767 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28251 conditions, 8015 events. 2614/8015 cut-off events. For 19878/19911 co-relation queries the response was YES. Maximal size of possible extension queue 343. Compared 77041 event pairs, 719 based on Foata normal form. 25/7983 useless extension candidates. Maximal degree in co-relation 28186. Up to 3145 conditions per place. [2022-11-16 12:27:39,904 INFO L137 encePairwiseOnDemand]: 102/115 looper letters, 563 selfloop transitions, 12 changer transitions 60/698 dead transitions. [2022-11-16 12:27:39,905 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 698 transitions, 6414 flow [2022-11-16 12:27:39,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 12:27:39,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-16 12:27:39,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 948 transitions. [2022-11-16 12:27:39,908 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7494071146245059 [2022-11-16 12:27:39,909 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 948 transitions. [2022-11-16 12:27:39,909 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 948 transitions. [2022-11-16 12:27:39,910 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:27:39,910 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 948 transitions. [2022-11-16 12:27:39,913 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 86.18181818181819) internal successors, (948), 11 states have internal predecessors, (948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:39,916 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:39,917 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:39,917 INFO L175 Difference]: Start difference. First operand has 188 places, 256 transitions, 1681 flow. Second operand 11 states and 948 transitions. [2022-11-16 12:27:39,917 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 698 transitions, 6414 flow [2022-11-16 12:27:40,046 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 189 places, 698 transitions, 6359 flow, removed 8 selfloop flow, removed 7 redundant places. [2022-11-16 12:27:40,054 INFO L231 Difference]: Finished difference. Result has 195 places, 261 transitions, 1750 flow [2022-11-16 12:27:40,054 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=1653, PETRI_DIFFERENCE_MINUEND_PLACES=179, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=256, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=244, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1750, PETRI_PLACES=195, PETRI_TRANSITIONS=261} [2022-11-16 12:27:40,055 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, 77 predicate places. [2022-11-16 12:27:40,055 INFO L495 AbstractCegarLoop]: Abstraction has has 195 places, 261 transitions, 1750 flow [2022-11-16 12:27:40,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:40,056 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:27:40,056 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:27:40,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-16 12:27:40,056 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-16 12:27:40,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:27:40,057 INFO L85 PathProgramCache]: Analyzing trace with hash -1619917066, now seen corresponding path program 7 times [2022-11-16 12:27:40,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:27:40,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61915712] [2022-11-16 12:27:40,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:27:40,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:27:40,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:40,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:27:40,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:27:40,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61915712] [2022-11-16 12:27:40,734 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61915712] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:27:40,735 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:27:40,735 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-16 12:27:40,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234262625] [2022-11-16 12:27:40,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:27:40,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 12:27:40,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:27:40,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 12:27:40,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:27:40,737 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2022-11-16 12:27:40,738 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 195 places, 261 transitions, 1750 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:40,739 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:27:40,739 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2022-11-16 12:27:40,739 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:27:43,856 INFO L130 PetriNetUnfolder]: 3056/9314 cut-off events. [2022-11-16 12:27:43,857 INFO L131 PetriNetUnfolder]: For 24561/24621 co-relation queries the response was YES. [2022-11-16 12:27:43,912 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33319 conditions, 9314 events. 3056/9314 cut-off events. For 24561/24621 co-relation queries the response was YES. Maximal size of possible extension queue 411. Compared 92675 event pairs, 735 based on Foata normal form. 48/9299 useless extension candidates. Maximal degree in co-relation 33250. Up to 2993 conditions per place. [2022-11-16 12:27:43,945 INFO L137 encePairwiseOnDemand]: 102/115 looper letters, 590 selfloop transitions, 15 changer transitions 34/702 dead transitions. [2022-11-16 12:27:43,945 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 702 transitions, 6473 flow [2022-11-16 12:27:43,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 12:27:43,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-16 12:27:43,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 948 transitions. [2022-11-16 12:27:43,950 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7494071146245059 [2022-11-16 12:27:43,950 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 948 transitions. [2022-11-16 12:27:43,950 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 948 transitions. [2022-11-16 12:27:43,951 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:27:43,951 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 948 transitions. [2022-11-16 12:27:43,954 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 86.18181818181819) internal successors, (948), 11 states have internal predecessors, (948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:43,957 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:43,958 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:43,959 INFO L175 Difference]: Start difference. First operand has 195 places, 261 transitions, 1750 flow. Second operand 11 states and 948 transitions. [2022-11-16 12:27:43,959 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 203 places, 702 transitions, 6473 flow [2022-11-16 12:27:44,148 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 197 places, 702 transitions, 6441 flow, removed 9 selfloop flow, removed 6 redundant places. [2022-11-16 12:27:44,156 INFO L231 Difference]: Finished difference. Result has 201 places, 266 transitions, 1836 flow [2022-11-16 12:27:44,156 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=1729, PETRI_DIFFERENCE_MINUEND_PLACES=187, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=261, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=246, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1836, PETRI_PLACES=201, PETRI_TRANSITIONS=266} [2022-11-16 12:27:44,158 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, 83 predicate places. [2022-11-16 12:27:44,158 INFO L495 AbstractCegarLoop]: Abstraction has has 201 places, 266 transitions, 1836 flow [2022-11-16 12:27:44,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:44,159 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:27:44,159 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:27:44,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-16 12:27:44,159 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-16 12:27:44,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:27:44,160 INFO L85 PathProgramCache]: Analyzing trace with hash 128038670, now seen corresponding path program 8 times [2022-11-16 12:27:44,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:27:44,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730713457] [2022-11-16 12:27:44,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:27:44,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:27:44,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:44,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:27:44,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:27:44,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730713457] [2022-11-16 12:27:44,953 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730713457] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:27:44,954 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:27:44,954 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-16 12:27:44,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75058938] [2022-11-16 12:27:44,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:27:44,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 12:27:44,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:27:44,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 12:27:44,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:27:44,956 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2022-11-16 12:27:44,957 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 266 transitions, 1836 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:44,957 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:27:44,957 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2022-11-16 12:27:44,957 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:27:47,606 INFO L130 PetriNetUnfolder]: 3065/9486 cut-off events. [2022-11-16 12:27:47,606 INFO L131 PetriNetUnfolder]: For 26883/26935 co-relation queries the response was YES. [2022-11-16 12:27:47,659 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33996 conditions, 9486 events. 3065/9486 cut-off events. For 26883/26935 co-relation queries the response was YES. Maximal size of possible extension queue 411. Compared 95056 event pairs, 911 based on Foata normal form. 35/9457 useless extension candidates. Maximal degree in co-relation 33925. Up to 2171 conditions per place. [2022-11-16 12:27:47,691 INFO L137 encePairwiseOnDemand]: 102/115 looper letters, 561 selfloop transitions, 18 changer transitions 58/700 dead transitions. [2022-11-16 12:27:47,691 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 211 places, 700 transitions, 6520 flow [2022-11-16 12:27:47,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 12:27:47,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-16 12:27:47,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 950 transitions. [2022-11-16 12:27:47,800 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7509881422924901 [2022-11-16 12:27:47,801 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 950 transitions. [2022-11-16 12:27:47,801 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 950 transitions. [2022-11-16 12:27:47,801 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:27:47,802 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 950 transitions. [2022-11-16 12:27:47,804 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 86.36363636363636) internal successors, (950), 11 states have internal predecessors, (950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:47,807 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:47,808 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:47,808 INFO L175 Difference]: Start difference. First operand has 201 places, 266 transitions, 1836 flow. Second operand 11 states and 950 transitions. [2022-11-16 12:27:47,808 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 211 places, 700 transitions, 6520 flow [2022-11-16 12:27:47,997 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 205 places, 700 transitions, 6475 flow, removed 8 selfloop flow, removed 6 redundant places. [2022-11-16 12:27:48,006 INFO L231 Difference]: Finished difference. Result has 211 places, 269 transitions, 1902 flow [2022-11-16 12:27:48,008 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=1801, PETRI_DIFFERENCE_MINUEND_PLACES=195, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=266, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=248, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1902, PETRI_PLACES=211, PETRI_TRANSITIONS=269} [2022-11-16 12:27:48,009 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, 93 predicate places. [2022-11-16 12:27:48,009 INFO L495 AbstractCegarLoop]: Abstraction has has 211 places, 269 transitions, 1902 flow [2022-11-16 12:27:48,009 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:48,009 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:27:48,010 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:27:48,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-16 12:27:48,010 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-16 12:27:48,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:27:48,011 INFO L85 PathProgramCache]: Analyzing trace with hash 713026534, now seen corresponding path program 9 times [2022-11-16 12:27:48,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:27:48,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62615619] [2022-11-16 12:27:48,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:27:48,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:27:48,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:48,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:27:48,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:27:48,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62615619] [2022-11-16 12:27:48,686 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62615619] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:27:48,686 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:27:48,686 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-16 12:27:48,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12387588] [2022-11-16 12:27:48,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:27:48,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 12:27:48,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:27:48,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 12:27:48,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:27:48,689 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2022-11-16 12:27:48,690 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 211 places, 269 transitions, 1902 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:48,690 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:27:48,690 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2022-11-16 12:27:48,690 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:27:52,026 INFO L130 PetriNetUnfolder]: 3561/10941 cut-off events. [2022-11-16 12:27:52,026 INFO L131 PetriNetUnfolder]: For 32496/32558 co-relation queries the response was YES. [2022-11-16 12:27:52,096 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39653 conditions, 10941 events. 3561/10941 cut-off events. For 32496/32558 co-relation queries the response was YES. Maximal size of possible extension queue 478. Compared 112972 event pairs, 961 based on Foata normal form. 28/10893 useless extension candidates. Maximal degree in co-relation 39576. Up to 5105 conditions per place. [2022-11-16 12:27:52,127 INFO L137 encePairwiseOnDemand]: 102/115 looper letters, 438 selfloop transitions, 18 changer transitions 48/567 dead transitions. [2022-11-16 12:27:52,127 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 567 transitions, 5252 flow [2022-11-16 12:27:52,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 12:27:52,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-16 12:27:52,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 926 transitions. [2022-11-16 12:27:52,131 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7320158102766798 [2022-11-16 12:27:52,131 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 926 transitions. [2022-11-16 12:27:52,133 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 926 transitions. [2022-11-16 12:27:52,137 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:27:52,137 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 926 transitions. [2022-11-16 12:27:52,140 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 84.18181818181819) internal successors, (926), 11 states have internal predecessors, (926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:52,142 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:52,143 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:52,144 INFO L175 Difference]: Start difference. First operand has 211 places, 269 transitions, 1902 flow. Second operand 11 states and 926 transitions. [2022-11-16 12:27:52,145 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 219 places, 567 transitions, 5252 flow [2022-11-16 12:27:52,377 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 567 transitions, 5199 flow, removed 18 selfloop flow, removed 6 redundant places. [2022-11-16 12:27:52,385 INFO L231 Difference]: Finished difference. Result has 219 places, 275 transitions, 2001 flow [2022-11-16 12:27:52,385 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=1867, PETRI_DIFFERENCE_MINUEND_PLACES=203, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=269, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=251, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2001, PETRI_PLACES=219, PETRI_TRANSITIONS=275} [2022-11-16 12:27:52,386 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, 101 predicate places. [2022-11-16 12:27:52,386 INFO L495 AbstractCegarLoop]: Abstraction has has 219 places, 275 transitions, 2001 flow [2022-11-16 12:27:52,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:52,387 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:27:52,387 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:27:52,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-16 12:27:52,388 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-16 12:27:52,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:27:52,388 INFO L85 PathProgramCache]: Analyzing trace with hash -686273984, now seen corresponding path program 10 times [2022-11-16 12:27:52,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:27:52,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510234017] [2022-11-16 12:27:52,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:27:52,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:27:52,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:53,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:27:53,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:27:53,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510234017] [2022-11-16 12:27:53,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510234017] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:27:53,444 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:27:53,444 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-16 12:27:53,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441878784] [2022-11-16 12:27:53,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:27:53,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 12:27:53,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:27:53,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 12:27:53,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:27:53,448 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2022-11-16 12:27:53,449 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 275 transitions, 2001 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:53,449 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:27:53,449 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2022-11-16 12:27:53,450 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:27:56,789 INFO L130 PetriNetUnfolder]: 4013/12394 cut-off events. [2022-11-16 12:27:56,789 INFO L131 PetriNetUnfolder]: For 38267/38342 co-relation queries the response was YES. [2022-11-16 12:27:56,875 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45152 conditions, 12394 events. 4013/12394 cut-off events. For 38267/38342 co-relation queries the response was YES. Maximal size of possible extension queue 547. Compared 131164 event pairs, 1239 based on Foata normal form. 48/12357 useless extension candidates. Maximal degree in co-relation 45071. Up to 3223 conditions per place. [2022-11-16 12:27:56,901 INFO L137 encePairwiseOnDemand]: 102/115 looper letters, 741 selfloop transitions, 18 changer transitions 32/854 dead transitions. [2022-11-16 12:27:56,902 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 854 transitions, 8196 flow [2022-11-16 12:27:56,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 12:27:56,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-16 12:27:56,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 968 transitions. [2022-11-16 12:27:56,904 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7652173913043478 [2022-11-16 12:27:56,905 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 968 transitions. [2022-11-16 12:27:56,905 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 968 transitions. [2022-11-16 12:27:56,906 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:27:56,906 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 968 transitions. [2022-11-16 12:27:56,908 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 88.0) internal successors, (968), 11 states have internal predecessors, (968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:56,911 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:56,911 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:56,912 INFO L175 Difference]: Start difference. First operand has 219 places, 275 transitions, 2001 flow. Second operand 11 states and 968 transitions. [2022-11-16 12:27:56,912 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 854 transitions, 8196 flow [2022-11-16 12:27:57,170 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 223 places, 854 transitions, 8149 flow, removed 14 selfloop flow, removed 5 redundant places. [2022-11-16 12:27:57,180 INFO L231 Difference]: Finished difference. Result has 227 places, 280 transitions, 2091 flow [2022-11-16 12:27:57,181 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=1959, PETRI_DIFFERENCE_MINUEND_PLACES=213, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=275, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=257, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2091, PETRI_PLACES=227, PETRI_TRANSITIONS=280} [2022-11-16 12:27:57,181 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, 109 predicate places. [2022-11-16 12:27:57,181 INFO L495 AbstractCegarLoop]: Abstraction has has 227 places, 280 transitions, 2091 flow [2022-11-16 12:27:57,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:57,182 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:27:57,183 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:27:57,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-16 12:27:57,183 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-16 12:27:57,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:27:57,184 INFO L85 PathProgramCache]: Analyzing trace with hash -1400520722, now seen corresponding path program 11 times [2022-11-16 12:27:57,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:27:57,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279276443] [2022-11-16 12:27:57,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:27:57,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:27:57,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:58,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:27:58,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:27:58,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279276443] [2022-11-16 12:27:58,568 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279276443] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:27:58,568 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:27:58,568 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-16 12:27:58,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684446214] [2022-11-16 12:27:58,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:27:58,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 12:27:58,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:27:58,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 12:27:58,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:27:58,571 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2022-11-16 12:27:58,573 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 227 places, 280 transitions, 2091 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:58,573 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:27:58,573 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2022-11-16 12:27:58,573 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:28:01,896 INFO L130 PetriNetUnfolder]: 4024/12425 cut-off events. [2022-11-16 12:28:01,896 INFO L131 PetriNetUnfolder]: For 39277/39372 co-relation queries the response was YES. [2022-11-16 12:28:02,045 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45379 conditions, 12425 events. 4024/12425 cut-off events. For 39277/39372 co-relation queries the response was YES. Maximal size of possible extension queue 546. Compared 131853 event pairs, 1127 based on Foata normal form. 41/12375 useless extension candidates. Maximal degree in co-relation 45295. Up to 5125 conditions per place. [2022-11-16 12:28:02,072 INFO L137 encePairwiseOnDemand]: 102/115 looper letters, 426 selfloop transitions, 22 changer transitions 60/571 dead transitions. [2022-11-16 12:28:02,072 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 237 places, 571 transitions, 5333 flow [2022-11-16 12:28:02,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 12:28:02,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-16 12:28:02,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 930 transitions. [2022-11-16 12:28:02,075 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7351778656126482 [2022-11-16 12:28:02,076 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 930 transitions. [2022-11-16 12:28:02,076 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 930 transitions. [2022-11-16 12:28:02,076 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:28:02,077 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 930 transitions. [2022-11-16 12:28:02,079 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 84.54545454545455) internal successors, (930), 11 states have internal predecessors, (930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:28:02,081 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:28:02,082 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:28:02,082 INFO L175 Difference]: Start difference. First operand has 227 places, 280 transitions, 2091 flow. Second operand 11 states and 930 transitions. [2022-11-16 12:28:02,083 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 237 places, 571 transitions, 5333 flow [2022-11-16 12:28:02,312 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 231 places, 571 transitions, 5295 flow, removed 6 selfloop flow, removed 6 redundant places. [2022-11-16 12:28:02,316 INFO L231 Difference]: Finished difference. Result has 237 places, 283 transitions, 2169 flow [2022-11-16 12:28:02,316 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=2055, PETRI_DIFFERENCE_MINUEND_PLACES=221, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=280, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=258, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2169, PETRI_PLACES=237, PETRI_TRANSITIONS=283} [2022-11-16 12:28:02,317 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, 119 predicate places. [2022-11-16 12:28:02,317 INFO L495 AbstractCegarLoop]: Abstraction has has 237 places, 283 transitions, 2169 flow [2022-11-16 12:28:02,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:28:02,318 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:28:02,318 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:28:02,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-16 12:28:02,318 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-16 12:28:02,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:28:02,319 INFO L85 PathProgramCache]: Analyzing trace with hash -153720776, now seen corresponding path program 12 times [2022-11-16 12:28:02,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:28:02,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044834093] [2022-11-16 12:28:02,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:28:02,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:28:02,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:28:03,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:28:03,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:28:03,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044834093] [2022-11-16 12:28:03,546 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044834093] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:28:03,547 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:28:03,547 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-16 12:28:03,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277577025] [2022-11-16 12:28:03,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:28:03,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 12:28:03,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:28:03,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 12:28:03,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:28:03,550 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2022-11-16 12:28:03,552 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 237 places, 283 transitions, 2169 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:28:03,552 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:28:03,552 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2022-11-16 12:28:03,552 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:28:07,567 INFO L130 PetriNetUnfolder]: 4942/15353 cut-off events. [2022-11-16 12:28:07,568 INFO L131 PetriNetUnfolder]: For 52376/52453 co-relation queries the response was YES. [2022-11-16 12:28:07,727 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56601 conditions, 15353 events. 4942/15353 cut-off events. For 52376/52453 co-relation queries the response was YES. Maximal size of possible extension queue 684. Compared 169652 event pairs, 1677 based on Foata normal form. 37/15265 useless extension candidates. Maximal degree in co-relation 56511. Up to 3197 conditions per place. [2022-11-16 12:28:07,762 INFO L137 encePairwiseOnDemand]: 102/115 looper letters, 1045 selfloop transitions, 19 changer transitions 32/1159 dead transitions. [2022-11-16 12:28:07,762 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 245 places, 1159 transitions, 11455 flow [2022-11-16 12:28:07,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 12:28:07,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-16 12:28:07,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1005 transitions. [2022-11-16 12:28:07,768 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7944664031620553 [2022-11-16 12:28:07,768 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1005 transitions. [2022-11-16 12:28:07,768 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1005 transitions. [2022-11-16 12:28:07,769 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:28:07,769 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1005 transitions. [2022-11-16 12:28:07,771 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 91.36363636363636) internal successors, (1005), 11 states have internal predecessors, (1005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:28:07,773 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:28:07,774 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:28:07,774 INFO L175 Difference]: Start difference. First operand has 237 places, 283 transitions, 2169 flow. Second operand 11 states and 1005 transitions. [2022-11-16 12:28:07,774 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 245 places, 1159 transitions, 11455 flow [2022-11-16 12:28:08,346 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 235 places, 1159 transitions, 11317 flow, removed 22 selfloop flow, removed 10 redundant places. [2022-11-16 12:28:08,358 INFO L231 Difference]: Finished difference. Result has 240 places, 289 transitions, 2214 flow [2022-11-16 12:28:08,359 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=2057, PETRI_DIFFERENCE_MINUEND_PLACES=225, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=283, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=264, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2214, PETRI_PLACES=240, PETRI_TRANSITIONS=289} [2022-11-16 12:28:08,359 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, 122 predicate places. [2022-11-16 12:28:08,360 INFO L495 AbstractCegarLoop]: Abstraction has has 240 places, 289 transitions, 2214 flow [2022-11-16 12:28:08,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:28:08,360 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:28:08,360 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:28:08,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-16 12:28:08,361 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-16 12:28:08,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:28:08,362 INFO L85 PathProgramCache]: Analyzing trace with hash 2002622261, now seen corresponding path program 1 times [2022-11-16 12:28:08,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:28:08,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496225510] [2022-11-16 12:28:08,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:28:08,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:28:08,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:28:09,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:28:09,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:28:09,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496225510] [2022-11-16 12:28:09,440 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496225510] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:28:09,440 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:28:09,440 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-16 12:28:09,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177229215] [2022-11-16 12:28:09,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:28:09,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 12:28:09,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:28:09,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 12:28:09,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:28:09,443 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2022-11-16 12:28:09,444 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 240 places, 289 transitions, 2214 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:28:09,445 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:28:09,445 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2022-11-16 12:28:09,445 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:28:13,401 INFO L130 PetriNetUnfolder]: 4941/15374 cut-off events. [2022-11-16 12:28:13,402 INFO L131 PetriNetUnfolder]: For 47044/47122 co-relation queries the response was YES. [2022-11-16 12:28:13,534 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56129 conditions, 15374 events. 4941/15374 cut-off events. For 47044/47122 co-relation queries the response was YES. Maximal size of possible extension queue 684. Compared 170199 event pairs, 1637 based on Foata normal form. 30/15287 useless extension candidates. Maximal degree in co-relation 56040. Up to 4943 conditions per place. [2022-11-16 12:28:13,564 INFO L137 encePairwiseOnDemand]: 102/115 looper letters, 578 selfloop transitions, 23 changer transitions 59/723 dead transitions. [2022-11-16 12:28:13,564 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 250 places, 723 transitions, 7015 flow [2022-11-16 12:28:13,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 12:28:13,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-16 12:28:13,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 947 transitions. [2022-11-16 12:28:13,566 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7486166007905138 [2022-11-16 12:28:13,566 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 947 transitions. [2022-11-16 12:28:13,567 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 947 transitions. [2022-11-16 12:28:13,567 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:28:13,567 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 947 transitions. [2022-11-16 12:28:13,569 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 86.0909090909091) internal successors, (947), 11 states have internal predecessors, (947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:28:13,571 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:28:13,572 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:28:13,572 INFO L175 Difference]: Start difference. First operand has 240 places, 289 transitions, 2214 flow. Second operand 11 states and 947 transitions. [2022-11-16 12:28:13,572 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 250 places, 723 transitions, 7015 flow [2022-11-16 12:28:13,815 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 245 places, 723 transitions, 6968 flow, removed 12 selfloop flow, removed 5 redundant places. [2022-11-16 12:28:13,820 INFO L231 Difference]: Finished difference. Result has 250 places, 294 transitions, 2329 flow [2022-11-16 12:28:13,821 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=2168, PETRI_DIFFERENCE_MINUEND_PLACES=235, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=289, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=266, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2329, PETRI_PLACES=250, PETRI_TRANSITIONS=294} [2022-11-16 12:28:13,821 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, 132 predicate places. [2022-11-16 12:28:13,821 INFO L495 AbstractCegarLoop]: Abstraction has has 250 places, 294 transitions, 2329 flow [2022-11-16 12:28:13,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:28:13,822 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:28:13,822 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:28:13,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-16 12:28:13,822 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-16 12:28:13,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:28:13,823 INFO L85 PathProgramCache]: Analyzing trace with hash 1655173961, now seen corresponding path program 2 times [2022-11-16 12:28:13,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:28:13,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074162063] [2022-11-16 12:28:13,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:28:13,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:28:13,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:28:14,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:28:14,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:28:14,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074162063] [2022-11-16 12:28:14,756 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074162063] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:28:14,756 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:28:14,757 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-16 12:28:14,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076355635] [2022-11-16 12:28:14,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:28:14,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 12:28:14,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:28:14,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 12:28:14,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:28:14,760 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2022-11-16 12:28:14,762 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 250 places, 294 transitions, 2329 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:28:14,762 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:28:14,762 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2022-11-16 12:28:14,762 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:28:18,407 INFO L130 PetriNetUnfolder]: 4477/13948 cut-off events. [2022-11-16 12:28:18,407 INFO L131 PetriNetUnfolder]: For 45135/45201 co-relation queries the response was YES. [2022-11-16 12:28:18,550 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51333 conditions, 13948 events. 4477/13948 cut-off events. For 45135/45201 co-relation queries the response was YES. Maximal size of possible extension queue 616. Compared 151538 event pairs, 1492 based on Foata normal form. 22/13857 useless extension candidates. Maximal degree in co-relation 51239. Up to 3903 conditions per place. [2022-11-16 12:28:18,581 INFO L137 encePairwiseOnDemand]: 104/115 looper letters, 549 selfloop transitions, 16 changer transitions 56/684 dead transitions. [2022-11-16 12:28:18,582 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 259 places, 684 transitions, 6684 flow [2022-11-16 12:28:18,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 12:28:18,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-16 12:28:18,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 933 transitions. [2022-11-16 12:28:18,584 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7375494071146245 [2022-11-16 12:28:18,584 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 933 transitions. [2022-11-16 12:28:18,584 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 933 transitions. [2022-11-16 12:28:18,584 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:28:18,585 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 933 transitions. [2022-11-16 12:28:18,586 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 84.81818181818181) internal successors, (933), 11 states have internal predecessors, (933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:28:18,589 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:28:18,590 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:28:18,590 INFO L175 Difference]: Start difference. First operand has 250 places, 294 transitions, 2329 flow. Second operand 11 states and 933 transitions. [2022-11-16 12:28:18,590 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 259 places, 684 transitions, 6684 flow [2022-11-16 12:28:18,836 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 253 places, 684 transitions, 6651 flow, removed 5 selfloop flow, removed 6 redundant places. [2022-11-16 12:28:18,842 INFO L231 Difference]: Finished difference. Result has 254 places, 288 transitions, 2245 flow [2022-11-16 12:28:18,843 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=2270, PETRI_DIFFERENCE_MINUEND_PLACES=243, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=292, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=276, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2245, PETRI_PLACES=254, PETRI_TRANSITIONS=288} [2022-11-16 12:28:18,843 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, 136 predicate places. [2022-11-16 12:28:18,843 INFO L495 AbstractCegarLoop]: Abstraction has has 254 places, 288 transitions, 2245 flow [2022-11-16 12:28:18,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:28:18,844 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:28:18,844 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:28:18,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-16 12:28:18,845 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-16 12:28:18,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:28:18,845 INFO L85 PathProgramCache]: Analyzing trace with hash -744027233, now seen corresponding path program 3 times [2022-11-16 12:28:18,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:28:18,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735524646] [2022-11-16 12:28:18,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:28:18,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:28:18,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:28:20,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:28:20,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:28:20,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735524646] [2022-11-16 12:28:20,013 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735524646] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:28:20,013 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:28:20,013 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-16 12:28:20,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677616267] [2022-11-16 12:28:20,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:28:20,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 12:28:20,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:28:20,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 12:28:20,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:28:20,015 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2022-11-16 12:28:20,016 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 254 places, 288 transitions, 2245 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:28:20,016 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:28:20,016 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2022-11-16 12:28:20,016 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:28:23,718 INFO L130 PetriNetUnfolder]: 4449/13779 cut-off events. [2022-11-16 12:28:23,718 INFO L131 PetriNetUnfolder]: For 44967/45049 co-relation queries the response was YES. [2022-11-16 12:28:23,849 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50783 conditions, 13779 events. 4449/13779 cut-off events. For 44967/45049 co-relation queries the response was YES. Maximal size of possible extension queue 616. Compared 149246 event pairs, 1474 based on Foata normal form. 31/13698 useless extension candidates. Maximal degree in co-relation 50689. Up to 3197 conditions per place. [2022-11-16 12:28:23,877 INFO L137 encePairwiseOnDemand]: 102/115 looper letters, 733 selfloop transitions, 22 changer transitions 44/862 dead transitions. [2022-11-16 12:28:23,877 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 258 places, 862 transitions, 8445 flow [2022-11-16 12:28:23,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 12:28:23,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-16 12:28:23,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 967 transitions. [2022-11-16 12:28:23,879 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7644268774703558 [2022-11-16 12:28:23,879 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 967 transitions. [2022-11-16 12:28:23,879 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 967 transitions. [2022-11-16 12:28:23,880 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:28:23,880 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 967 transitions. [2022-11-16 12:28:23,881 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 87.9090909090909) internal successors, (967), 11 states have internal predecessors, (967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:28:23,882 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:28:23,882 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:28:23,883 INFO L175 Difference]: Start difference. First operand has 254 places, 288 transitions, 2245 flow. Second operand 11 states and 967 transitions. [2022-11-16 12:28:23,883 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 258 places, 862 transitions, 8445 flow [2022-11-16 12:28:24,083 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 243 places, 862 transitions, 8324 flow, removed 28 selfloop flow, removed 15 redundant places. [2022-11-16 12:28:24,089 INFO L231 Difference]: Finished difference. Result has 247 places, 290 transitions, 2257 flow [2022-11-16 12:28:24,089 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=2158, PETRI_DIFFERENCE_MINUEND_PLACES=233, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=288, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=266, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2257, PETRI_PLACES=247, PETRI_TRANSITIONS=290} [2022-11-16 12:28:24,089 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, 129 predicate places. [2022-11-16 12:28:24,089 INFO L495 AbstractCegarLoop]: Abstraction has has 247 places, 290 transitions, 2257 flow [2022-11-16 12:28:24,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:28:24,090 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:28:24,090 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:28:24,090 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-16 12:28:24,090 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-16 12:28:24,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:28:24,090 INFO L85 PathProgramCache]: Analyzing trace with hash 80592799, now seen corresponding path program 4 times [2022-11-16 12:28:24,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:28:24,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243876974] [2022-11-16 12:28:24,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:28:24,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:28:24,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:28:24,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:28:24,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:28:24,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243876974] [2022-11-16 12:28:24,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243876974] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:28:24,964 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:28:24,964 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-16 12:28:24,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571625202] [2022-11-16 12:28:24,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:28:24,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 12:28:24,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:28:24,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 12:28:24,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:28:24,966 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2022-11-16 12:28:24,967 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 247 places, 290 transitions, 2257 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:28:24,967 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:28:24,967 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2022-11-16 12:28:24,968 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:28:28,450 INFO L130 PetriNetUnfolder]: 3983/12457 cut-off events. [2022-11-16 12:28:28,450 INFO L131 PetriNetUnfolder]: For 38862/38919 co-relation queries the response was YES. [2022-11-16 12:28:28,555 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45437 conditions, 12457 events. 3983/12457 cut-off events. For 38862/38919 co-relation queries the response was YES. Maximal size of possible extension queue 548. Compared 132640 event pairs, 1426 based on Foata normal form. 22/12378 useless extension candidates. Maximal degree in co-relation 45347. Up to 3197 conditions per place. [2022-11-16 12:28:28,585 INFO L137 encePairwiseOnDemand]: 102/115 looper letters, 719 selfloop transitions, 18 changer transitions 59/859 dead transitions. [2022-11-16 12:28:28,586 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 256 places, 859 transitions, 8363 flow [2022-11-16 12:28:28,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 12:28:28,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-16 12:28:28,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 967 transitions. [2022-11-16 12:28:28,588 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7644268774703558 [2022-11-16 12:28:28,588 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 967 transitions. [2022-11-16 12:28:28,588 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 967 transitions. [2022-11-16 12:28:28,588 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:28:28,589 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 967 transitions. [2022-11-16 12:28:28,591 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 87.9090909090909) internal successors, (967), 11 states have internal predecessors, (967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:28:28,593 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:28:28,593 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:28:28,593 INFO L175 Difference]: Start difference. First operand has 247 places, 290 transitions, 2257 flow. Second operand 11 states and 967 transitions. [2022-11-16 12:28:28,593 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 256 places, 859 transitions, 8363 flow [2022-11-16 12:28:28,790 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 249 places, 859 transitions, 8328 flow, removed 4 selfloop flow, removed 7 redundant places. [2022-11-16 12:28:28,797 INFO L231 Difference]: Finished difference. Result has 249 places, 286 transitions, 2188 flow [2022-11-16 12:28:28,798 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=2186, PETRI_DIFFERENCE_MINUEND_PLACES=239, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=288, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=270, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2188, PETRI_PLACES=249, PETRI_TRANSITIONS=286} [2022-11-16 12:28:28,799 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, 131 predicate places. [2022-11-16 12:28:28,799 INFO L495 AbstractCegarLoop]: Abstraction has has 249 places, 286 transitions, 2188 flow [2022-11-16 12:28:28,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:28:28,799 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:28:28,800 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:28:28,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-16 12:28:28,800 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-16 12:28:28,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:28:28,801 INFO L85 PathProgramCache]: Analyzing trace with hash -1139326009, now seen corresponding path program 5 times [2022-11-16 12:28:28,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:28:28,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376695165] [2022-11-16 12:28:28,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:28:28,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:28:28,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:28:29,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:28:29,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:28:29,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376695165] [2022-11-16 12:28:29,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376695165] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:28:29,454 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:28:29,454 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-16 12:28:29,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762192791] [2022-11-16 12:28:29,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:28:29,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 12:28:29,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:28:29,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 12:28:29,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:28:29,457 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2022-11-16 12:28:29,458 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 249 places, 286 transitions, 2188 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:28:29,458 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:28:29,459 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2022-11-16 12:28:29,459 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:28:32,245 INFO L130 PetriNetUnfolder]: 3504/11024 cut-off events. [2022-11-16 12:28:32,245 INFO L131 PetriNetUnfolder]: For 33029/33070 co-relation queries the response was YES. [2022-11-16 12:28:32,354 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39929 conditions, 11024 events. 3504/11024 cut-off events. For 33029/33070 co-relation queries the response was YES. Maximal size of possible extension queue 480. Compared 114632 event pairs, 1376 based on Foata normal form. 32/10966 useless extension candidates. Maximal degree in co-relation 39840. Up to 3197 conditions per place. [2022-11-16 12:28:32,379 INFO L137 encePairwiseOnDemand]: 104/115 looper letters, 528 selfloop transitions, 12 changer transitions 71/674 dead transitions. [2022-11-16 12:28:32,379 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 256 places, 674 transitions, 6487 flow [2022-11-16 12:28:32,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 12:28:32,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-16 12:28:32,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 933 transitions. [2022-11-16 12:28:32,381 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7375494071146245 [2022-11-16 12:28:32,381 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 933 transitions. [2022-11-16 12:28:32,381 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 933 transitions. [2022-11-16 12:28:32,382 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:28:32,382 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 933 transitions. [2022-11-16 12:28:32,383 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 84.81818181818181) internal successors, (933), 11 states have internal predecessors, (933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:28:32,385 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:28:32,385 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:28:32,385 INFO L175 Difference]: Start difference. First operand has 249 places, 286 transitions, 2188 flow. Second operand 11 states and 933 transitions. [2022-11-16 12:28:32,386 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 256 places, 674 transitions, 6487 flow [2022-11-16 12:28:32,562 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 244 places, 674 transitions, 6393 flow, removed 18 selfloop flow, removed 12 redundant places. [2022-11-16 12:28:32,568 INFO L231 Difference]: Finished difference. Result has 244 places, 278 transitions, 2013 flow [2022-11-16 12:28:32,568 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=2072, PETRI_DIFFERENCE_MINUEND_PLACES=234, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=284, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=272, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2013, PETRI_PLACES=244, PETRI_TRANSITIONS=278} [2022-11-16 12:28:32,568 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, 126 predicate places. [2022-11-16 12:28:32,569 INFO L495 AbstractCegarLoop]: Abstraction has has 244 places, 278 transitions, 2013 flow [2022-11-16 12:28:32,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:28:32,569 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:28:32,569 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:28:32,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-16 12:28:32,569 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-16 12:28:32,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:28:32,570 INFO L85 PathProgramCache]: Analyzing trace with hash 139278361, now seen corresponding path program 6 times [2022-11-16 12:28:32,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:28:32,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060837251] [2022-11-16 12:28:32,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:28:32,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:28:32,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:28:33,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:28:33,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:28:33,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060837251] [2022-11-16 12:28:33,729 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060837251] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:28:33,729 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:28:33,729 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-16 12:28:33,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439246908] [2022-11-16 12:28:33,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:28:33,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 12:28:33,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:28:33,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 12:28:33,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:28:33,731 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2022-11-16 12:28:33,731 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 244 places, 278 transitions, 2013 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:28:33,732 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:28:33,732 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2022-11-16 12:28:33,732 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:28:36,206 INFO L130 PetriNetUnfolder]: 3052/9433 cut-off events. [2022-11-16 12:28:36,207 INFO L131 PetriNetUnfolder]: For 24680/24718 co-relation queries the response was YES.